CN106356211B - A kind of high speed repulsive force mechanism gas buffer - Google Patents
A kind of high speed repulsive force mechanism gas buffer Download PDFInfo
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- CN106356211B CN106356211B CN201610893082.6A CN201610893082A CN106356211B CN 106356211 B CN106356211 B CN 106356211B CN 201610893082 A CN201610893082 A CN 201610893082A CN 106356211 B CN106356211 B CN 106356211B
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- cavity
- piston
- repulsive force
- support plate
- lever
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
- H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of high speed repulsive force mechanism gas buffers, cavity including support plate and fixed installation on the supporting plate, piston and the spring below piston are provided in the cavity, it further include the mechanism lever across support plate central axes, cavity, piston and spring, shock ring is fixed in mechanism lever, the shock ring is located above piston, the moving contact of mechanism lever one end connection breaker, other end bindiny mechanism lock catch unit；The present invention solves the problems, such as high-speed mechanism buffering, greatly reduces impact force damage caused by mechanism in buffering course, improves the service life and operation stability of high-speed mechanism；By changing arrangement, this buffer unit can also be used for the closure buffering of high-speed mechanism.
Description
Technical field
It is specifically a kind of to can be used for breaker electromagnetism reprimand the present invention relates to a kind of high speed repulsive force mechanism gas buffer
Force mechanisms disjunction, the device for being closed gas buffer.
Background technique
With the development of China's electric system, system short-circuit levels of current is steeply risen, to protection electrical appliance equipment operation
Rapidity, stability and reliability requirement it is higher and higher.
High speed electromagnetic repulsive force mechanism, because the advantages that its structure is simple, breaking speed is fast is more and more applied.
The high speed electromagnetic repulsive force mechanism braking impact mitigation measure existing defects applied now.In general repulsive force mechanism action process
Maximum speed can achieve 5-10m/s, even higher, the buffering method taken at present is mostly mechanical forced stop bit type
Hard buffering method.
In braking process, mechanism is braked suddenly by high-speed motion even to rebound, and generates huge acceleration, the movement of equipment
Great impact active force is born in part, and to equipment, this body structure also has very major injury.Therefore, the service life of high speed operation mechanism is general
It is not very high.
Summary of the invention
It is an object of the invention to deficiencies according to prior art, provide a kind of high speed electromagnetic repulsive force mechanism gas buffer
Device, it can be achieved that after high-speed mechanism half trip gas buffer.
The technical solution adopted by the present invention to solve the technical problems is: a kind of high speed repulsive force mechanism is filled with gas buffer
It sets, the cavity including support plate and fixed installation on the supporting plate, piston is provided in the cavity and is located at below piston
Spring, further include the mechanism lever across support plate central axes, cavity, piston and spring, be fixed with shock in mechanism lever
Ring, the shock ring are located above piston, and the moving contact of mechanism lever one end connection breaker, the other end connects machine
Structure lock catch unit.
A kind of high speed repulsive force mechanism gas buffer, the top open part of cavity be provided with to piston into
The chamber end cap of row limit.
A kind of high speed repulsive force mechanism gas buffer, is provided with gas-tight ring between cavity and support plate.
A kind of high speed repulsive force mechanism gas buffer, on the chamber end cap and side of cavity are provided with
Several air pressure adjustment holes.
The lower end surface of a kind of high speed repulsive force mechanism gas buffer, inside cavity bottom face and piston is set
There is compatible inclined-plane.
A kind of high speed repulsive force mechanism gas buffer, inside cavity bottom face are what two inclined-planes were constituted
Boss, the lower end surface of the piston are the groove that two inclined-planes are constituted.
The beneficial effects of the present invention are: electromagnetic repulsion mechanism application this patent provide gas buffer after, to reprimand
The first half stroke motion characteristic of force mechanisms does not influence, and breaker can quick-speed turning on-off；When moving to the second half, gas buffer
It has an effect, before reaching mechanism mechanical position limitation, mechanism kinematic partial velocity is reduced to reduced levels rapidly, can be effectively reduced
The impact injury that structure is subject to solves repulsive force mechanism disjunction buffer problem, can greatly prolong the service life of high speed repulsive force mechanism；
The gas buffer is equally applicable to mechanism closure buffering.
Detailed description of the invention
Fig. 1 is structural schematic diagram when disjunction of the present invention buffers；
Fig. 2 is cross-sectional view when disjunction of the present invention buffers；
Structural schematic diagram when Fig. 3 is present invention closure buffering；
Cross-sectional view when Fig. 4 is present invention closure buffering.
Appended drawing reference are as follows: 1-repulsion coil, 2-repulsion dish, 3-hit ring, 4-chamber end caps, 5-pistons, 6-bullets
Spring, 7-mechanism levers, 8-cavitys, 9-gas-tight rings, 10-support plates, 11-mechanism lock catch units.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.Being illustrated in the drawings for the embodiment is shown, phase
Same label indicates same or similar element or element with the same or similar functions.The embodiments described below is to show
Example property, it is intended to explain the present invention, be not considered as limiting the invention.
Referring to figs. 1 to 4, the invention discloses a kind of high speed repulsive force mechanism gas buffers, including support
Plate 10 and the cavity 8 being fixedly mounted in support plate 10, are provided with gas-tight ring 9, for guaranteeing chamber between cavity 8 and support plate 10
The air-tightness of body 8 is disposed with piston 5 and the spring 6 positioned at 5 lower section of piston in the cavity 8, and piston 5 can be in cavity 8
It is middle axially to be slided up and down along mechanism lever 7, by the air between compression and cavity 8, change simultaneously between chamber end cap 4
Gas pressure intensity realizes that pooling feature, spring 6 are mounted between cavity 8 and piston 5 under dual measure, and spring 6 is in addition to making piston
5 are maintained at outside the function of initial position, can be compressed in buffering, absorb part kinetic energy, there is certain auxiliary buffer function, chamber
The top open part of body 8 is provided with the chamber end cap 4 limited to piston 5, and chamber end cap 4 is fitted in 5 top of piston, passes through
Screw in compression is fixed on cavity 8, further includes the mechanism lever 7 across 10 central axes of support plate, cavity 8, piston 5 and spring 6,
It is fixed in mechanism lever 7 and hits ring 3, the shock ring 3 is located at 5 top of piston, can move with mechanism lever 7, described
7 top of mechanism lever connects the moving contact of breaker, lower part connecting mechanism lock catch unit 11, in use, in mechanism lever 7 successively
It is fixed with repulsion dish 2 and the repulsion coil 1 above repulsion dish 2.
When high speed disjunction, after hitting the shock piston 5 of ring 3, start gas buffer function, the kinetic energy of repulsive force mechanism turns rapidly
It moves, repulsive force mechanism slows down rapidly, hits ring 3 and 5 distance D of piston by adjusting, can control the starting of gas buffer function
Moment.
Further, on the chamber end cap 4 and side of cavity 8 is provided with several air pressure adjustment holes, can pass through choosing
That selects adjustment hole opens quantity or big minor adjustment cushion effect size.
Further, the 8 inner bottom end face of cavity and the lower end surface of piston 5 are equipped with compatible inclined-plane, angle phase
Matching, wherein the 8 inner bottom end face of cavity is the boss that two inclined-planes are constituted, and the lower end surface of the piston 5 is two
The cavity for accommodating spring 6 is equipped among the groove that inclined-plane is constituted, boss and groove, in buffering latter stage, piston 5 and 8 end face of cavity
When contact, buffer unit can carry out mechanical position limitation to repulsive force mechanism, and limit forced area is bigger, and Impact direction is to external radiation
So that be more uniformly stressed, when reducing limit caused by impact and influence.
The course of work of the present invention is as follows:
Buffer for disjunction: repulsion coil 1 is powered, and 2 lead agency lever 7 of repulsion dish and shock ring 3 move downward, mechanism
The first half stroke motion characteristic of lever 7 is not influenced by buffer unit；When hitting shock 5 end face of piston of ring 3, mechanism kinetic energy
Fast transfer, and compressed air to do work consumption makes high-speed mechanism slow down rapidly；Mechanism kinematic latter stage, speed have already decreased to lower
Level, mechanism lock catch unit 11 can reliably latch under lower-speed state at this time, and piston 5 hits cavity 8 and carries out last mechanical position limitation,
Quantity or the adjustable buffering effect of size are opened by adjusting air pressure adjustment hole.
It is buffered for being closed: after the tripping of mechanism lock catch unit 11, in the active force of closing spring (not occurring in figure)
Under, repulsion dish 2, mechanism lever 7 and shock ring 3 move upwards, and mechanism starts to be closed；The first half stroke motion characteristic of closure not by
Buffer unit influences, when hitting shock 5 end face of piston of ring 3, mechanism kinetic energy fast transfer, and compressed air to do work consumes
Energy, closing speed reduce, and contact of breaker can be closed and be reduced with lower speed spring, substantially reduce closure impact force.
After gas buffer of the present invention, the preceding half trip of mechanism (moving displacement is less than D) kinetic characteristic is not by appointing
What is influenced；In the rear half trip (moving displacement is greater than D) of mechanism, arranged by compressed air and the built-in spring of buffer unit etc.
It applies, absorbs most of mechanism kinetic energy, which is able to achieve the flexible buffer of repulsive force mechanism, slows down rapidly to mechanism, substantially
Degree reduces adverse effect caused by quick mechanism impact, improves mechanism service life and stability；Ring can be hit by adjusting
Space D between piston controls the buffer starting moment；Can by selection air pressure adjustment hole to open quantity or big minor adjustment slow
Impulse force size, and then control buffering effect.
In the present invention, certain parts are omitted, such as cancels gas-tight ring 9, cancel chamber end cap 4 using other modes to work
Plug 5 is limited, and buffering effect can be equally reached.
Diagram shape in this specification is exemplary, and the shape for changing certain parts can equally reach pressure buffer
Effect, this is not considered as limiting the invention.
In description in the present invention, it is to be understood that: on the basis of " disjunction " refers to diagram direction, the motion parts of mechanism to
Lower movement；On the basis of " closed " refers to diagram direction, the motion parts of mechanism are moved upwards；Contact part is in the example shown without going out
Existing, on the basis of illustrating direction, contact is fixed on the top of mechanism lever；The preceding half trip of mechanism refers to that moving displacement is less than
The motion parts of distance D are illustrated, the rear half trip of mechanism refers to that moving displacement is greater than diagram distance D, starts pooling feature
Motion parts.These explanations are of the invention for ease of description, and are not considered as limiting the invention.
The above-described embodiments merely illustrate the principles and effects of the present invention, and the embodiment that part uses, for
For those skilled in the art, without departing from the concept of the premise of the invention, can also make it is several deformation and
It improves, these are all within the scope of protection of the present invention.
Claims (1)
1. a kind of high speed repulsive force mechanism gas buffer, it is characterised in that: including support plate (10) and be fixedly mounted on branch
Cavity (8) on fagging (10), the interior spring (6) for being provided with piston (5) and being located at below piston (5) of the cavity (8), institute
The lower end surface of cavity (8) the inner bottom end face and piston (5) stated is equipped with compatible inclined-plane, the cavity (8) inner bottom
Face is the boss that two inclined-planes are constituted, and the lower end surface of the piston (5) is the groove that two inclined-planes are constituted, in boss and groove
Between be equipped with accommodate spring (6) cavity, further include across support plate (10) central axes, cavity (8), piston (5) and spring (6)
Mechanism lever (7) is fixed in mechanism lever (7) and hits ring (3), and the shock ring (3) is located at piston (5) top, described
Mechanism lever (7) one end connection breaker moving contact, other end bindiny mechanism lock catch unit (11), the cavity (8)
Top open part be provided with the chamber end cap (4) limited to piston (5), the cavity (8) and support plate (10) it
Between be provided with gas-tight ring (9), on the chamber end cap (4) and the side of cavity (8) is provided with several air pressure adjustment holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893082.6A CN106356211B (en) | 2016-10-13 | 2016-10-13 | A kind of high speed repulsive force mechanism gas buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893082.6A CN106356211B (en) | 2016-10-13 | 2016-10-13 | A kind of high speed repulsive force mechanism gas buffer |
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| Publication Number | Publication Date |
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| CN106356211A CN106356211A (en) | 2017-01-25 |
| CN106356211B true CN106356211B (en) | 2019-08-30 |
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| CN201610893082.6A Active CN106356211B (en) | 2016-10-13 | 2016-10-13 | A kind of high speed repulsive force mechanism gas buffer |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960738A (en) * | 2017-04-27 | 2017-07-18 | 南京南瑞继保电气有限公司 | A kind of high-speed circuit breaker mixed type buffer |
| CN107068433B (en) * | 2017-05-16 | 2019-04-05 | 常州博瑞电力自动化设备有限公司 | A kind of piston mechanism of Fast mechanical switch |
| CN107316759B (en) * | 2017-07-19 | 2019-07-19 | 西安交通大学 | A kind of gas buffer structure for electromagnetic repulsion force operating mechanism |
| CN111785553A (en) * | 2019-06-17 | 2020-10-16 | 北京京东尚科信息技术有限公司 | Key assembly |
| CN111180286B (en) * | 2020-01-06 | 2022-04-12 | 南电电气有限公司 | Plastic case circuit breaker with good power-on and power-off stability |
| CN113270291B (en) * | 2021-05-25 | 2022-11-18 | 上海电器科学研究所（集团）有限公司 | Shock-resistant quick vacuum switch |
| CN115472472B (en) * | 2022-09-20 | 2023-06-13 | 南京开关厂股份有限公司 | Quick breaking type vacuum circuit breaker adopting eddy-current repulsive force technology |
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| Publication number | Publication date |
|---|---|
| CN106356211A (en) | 2017-01-25 |
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